1406078 has 4 divisors (see below), whose sum is σ = 2109120. Its totient is φ = 703038.

The previous prime is 1406077. The next prime is 1406081. The reversal of 1406078 is 8706041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8706041 = 97 ⋅89753.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 351518 + ... + 351521.

It is an arithmetic number, because the mean of its divisors is an integer number (527280).

2^1406078 is an apocalyptic number.

1406078 is a deficient number, since it is larger than the sum of its proper divisors (703042).

1406078 is an equidigital number, since it uses as much as digits as its factorization.

1406078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703041.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1406078 is about 1185.7815987778. The cubic root of 1406078 is about 112.0305507644.

The spelling of 1406078 in words is "one million, four hundred six thousand, seventy-eight".